Valve for deep-well pumps



,Sept. 23, i924.

v F. J. LUKINS VALVE FOR DEEP WELL PUMPS Filed March 13. 1923 m r k Patented Sept. 23, 1924.

FRED J. LUKINS, OF HUNTINGJPON FARE, CALIFORNIA.

VALVE FOR DEEP-WELL PUMPS.

Application filed. March 13, 1923. Serial No. 6%,719.

To all whom it may concern:

Be it known that I, Finn) J. LUKINS, a citizen of the United States, residing at Huntington Park, in the county of Los Angeles and State of California, have invented new and useful Improvements in Valves for Deep-Well Pumps, of which the following is a specification.

This invention has reference to improvements in valves for deep well pumps and its object is to provide a valve wherein a relatively small lift thereof will provide a very large passageway for the liquid, thus permitting the pump piston to run at a high speed without choking.

While in the following description the structure will be considered as used for deep well pumping, it will be understood that it is adapted to any ordinary pump wherein a check valve is used.

In accordance with this invention the pump piston is provided with conical valve seats, and to those seats there is adapted a conical valve; the valve and seats may be of a type wherein two valves are employed in a single cylinder, and while a single valve structure embodying the same principles may be used, a double valve structure is to be preferred.

The invention contemplates a structure whereby sand or other substance may pass through the ports and be carried on up with the water or fluid without choking or stick-- ing the valve.

The invention will be best understood from a consideration of the following detailed description, taken in connection with the accompanying drawings forming a part of this specification, with the further understanding that while the drawings show a practical form of the invention the latter is not confined to any strict conformity with the showing of the drawings, but may be changed and modified so long as such changes and modifications make no material departure from the salient features of the invention, in which:

Figure 1 is a side elevational view of my improved construction with parts broken away and in section; Figure 2 is a plan view of the adjustable valve guide. Figure 3 is a plan view of the valve itself, and Figure 4 is a planview of the plunger body showing the valve seats.

Similar reference numerals refer to similar parts throughout the several views.

The plunger body preferably is a casting and comprises a tubular shell 1 attached to a concentric stem 2 by radial webs 3. 'The extension surface of the upper part of the body, where it joins the stem, is turned conical and forms seals 4: and 5 for a double seated conical valve 6. The spaces 7 between the seats and the webs constitute parts for the passage of fluids issuing from the interior of body 1.

I prefer to make the lower end of the stem between and below the webs in the form of an inverted conoid, as shown at 8, and the other interior surface of the body should also be of a shape suitable for the passage of fluids.

Plunger stem 2 is threaded at its extreme upper end, as shown in Fig. 1, for attaching to the plunger rod; it is also threaded, or otherwise provided for means of attaching and adjusting the valve guide comprising the body 9, shell 10, and connecting webs 11. The guide when properly adjusted is maintained in place by means of lock nut 12 or otherwise.

The valve 6 comprises a ribbed cylindrical upper shell 13 made integral with a conical shell 14 below it. The exterior of the upper portion I prefer to make ribbed as at 15. The interior of the lower portion is recessed, as at 16, to form the seating 1718.

The exterior diameter of the cylindrical ribbed portion of the valve is such that it makes a good sliding fit within the guide shell 10. The valve is therefore free to move longitudinally between its seats and steps 19 at the top. The amount of this travel is adjustable by positioning guide body 9 on the plunger stem. The spaces between the ribs 15 form relatively large fluid passage-ways 20 past the valve.

I desire to call special attention to the relatively large fluid passage part of my valve for the free carrying in solution of any sand or other sediment that may be in the water or fluid; this is made possible by the double directional flow indicated by the arrows; also to the large guide wearing surface of the valve, by having an especially designed guide instead of allowing the valve to be guided on the stem of the valve which would be of very much smaller area, also by having a cylindrical guide at some distance from the stem of the valve substantially attached thereto, thereby properly guiding the valve on its seats regardless of the looseness of the plunger in the Well cylinder and at the same time preventing any undue Wear on the inside of the cylinder Which would be caused if the valve Was permitted to be guided by the insideof the'cylinder itself. The fact that the amount of movement of the valve may be limited by a convenient adjustment of the guide to just the amount required is another feature that I Wish to emphasize.

I claim:

1. In a pump plunger, an axial stem, a Valve guide comprising a hub a cylindrical shellconnected thereto by radial arms, said guide being adapted for adjustable positioning on saidstem.

2. In a pump plunger having an axial stem, annular valve guide coaxial with said stem and adapted for adjustable positioning therein; said guide having an interior eylindrical guiding surface.

3. In a pump plunger having an axial stem, a valve guide having an interior cy lindrical guiding surface co-axial With said stem, and an annular valve, also co-axial with said stem, said valve having an ex terior ribbed guiding surface adapted to engage with the cylindrical guiding surface of said valve guide.

l. In a pump plunger having an axial stem, an annular valve guide co-axial with said stem and adj ustably mounted thereon, said guide valve having an interior cylindrical guiding surface and an annular valve eo-axial with said stem and valve said annular valve having an exterior ribbed cylindrical guiding surface adapted to engage with the interior guiding surface of said valve guide and an interior recessed conical surface adapted to seat on the plun ger.

5. In combination with a pump plunger having an axial stem; an annular valve guide co-axial with said stem and ada ted for adjustable positioning thereon; an an annular valve co-operative with said guide.

FRED J. LUKINS.

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